body, html
    line-height: 1
    font-weight: 200
    font-family: 'PingFang SC', 'STHeitiSC-Light', arial, sans-serif

.clearfix
    display: inline-block
    &:after
        display: block
        content: "."
        height: 0
        line-height:0
        clear: both
        visibility: hidden


@media (-webkit-min-device-pixel-ratio:1.5),(min-device-pixel-ratio:1.5)
    .border-1px
        &::after
            -webkit-transform: scaleY(0.7)
            transform: scaleY(0.7)


// @media (-webkit-min-device-pixel-ratio:2),(min-device-pixel-ratio:2)
//     .border-1px
//         &::after
//             -webkit-transform: scaleY(0.5)
//             transform: scaleX(0.5)